What modification can you suggest in the Hardy Schulze law?

Explanation

According to Hardy Schulze law, the coagulating ion has charge opposite to that one the colloidal particles. Hence, the charge on colloidal particles is neutralized and coagulation occyrs. The modification to this law is:
When oppositely charged sols are mixed in proper proporties to neutralize the charge of each other, coagulation of both the sol occurs.